I know this is still Disney, but it's not a Disney park! The fireworks from the water between Downtown Disney and Saratoga Springs Resort were fantastic last year. We were staying at Saratoga Springs and one of the fireworks barges was right in front of our room in the Congress Park section so we watched from the balcony. You'd have a great view from along the waterfront along the Marketplace, Pleasure Island or the Westside. Or you could walk over to Saratoga Springs and watch from that side.
Dick Taylor